... colorful fixed gear bike wheelsets 2.45,50,60,70,80MM 3.with aluminium hlip-hlop hub 4.steel spokes HANGZHOU GUANHAO BICYCLE ... medium and high grade mountain bike,dune buggy,city bike,folding bike,children bike,chopper bike,racing bike,BMX and fixed gear bike!Our factory was founded in ... of over 10MU. This is our logo.We have specialized in bicycle from 1988.Major export from 2005We are in shanghai ...